The war between Russia and Ukraine, which enters its fourth year next month and shows no signs of ending, has killed more than 10,000 Ukrainian civilians, according to the United Nations.

An overnight Russian drone attack on Ukraine killed at least four people in the northeastern city of Sumy, Ukraine's Interior Ministry said. Images shared by emergency services showed a gaping hole ripped into the side of an apartment building in Sumy and rescue workers digging through debris as they searched for survivors.